Question 1 - Adam's case

Adam is sure that the average price of a round-trip ticket to Paris from Sydney from Qantas is over $1800. He conducts a survey of prices from the Qantas website for different departure and return dates. Is there enough evidence to support his claim at the 5% level of significance? Useworksheet Aof the Excel Exam data file to answer this question.

The null and alternative hypotheses for this test are

H0: ? = 0.05; H1: ? > 0.05H0: = 1800; H1: ? 1800H0: ? 1800; H1: > 1800H0: ? 1800; H1:

The decision rule at the 5% level of significance is

A) reject H0 if t > 1.73

B) reject H0 if Z > 2.09

C) reject H0 if t > 2.09 or t

D) reject H0 if Z > 1.73

Thep-value for this test is

A) 0.20

B) 0.13

C) 0.24

D) 0.22

The calculated test statistic for this hypothesis test is

A) 1.96

B) 0.79

C) 1813.25

D) 0.05

The conclusion of this test is

A)reject H0 and hence conclude that average roundtrip fares from Sydney to Paris from Qantas are not greater than $1800.

B) reject H0 and hence conclude that average roundtrip fares from Sydney to Paris from Qantas are greater than $1800.

C) do not reject H0 and hence conclude that average roundtrip fares from Sydney to Paris from Qantas are not greater than $1800.

D) do not reject H0 and hence conclude that average roundtrip fares from Sydney to Paris from Qantas are greater than $1800.

Price 1756 1712 1933 1925 1800 1803 1963 1756 1742 1783 1852 1846 1923 1713 1740 1752 1826 1811 1797 1832